251 lines
5.0 KiB
C
251 lines
5.0 KiB
C
/* $NetBSD: cons.c,v 1.3 1998/10/28 02:47:35 sakamoto Exp $ */
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/*
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* Copyright (c) 1988 University of Utah.
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* Copyright (c) 1990, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* the Systems Programming Group of the University of Utah Computer
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* Science Department.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* from: Utah Hdr: cons.c 1.7 92/02/28
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*
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* @(#)cons.c 8.1 (Berkeley) 6/10/93
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*/
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#include <sys/param.h>
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#include <bebox/include/bus.h>
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#include "cons.h"
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#ifdef CONS_BE
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void becnprobe(), becninit(), becnputchar();
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int becngetchar(), becnscan();
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#endif
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#ifdef CONS_VGA
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void vgacnprobe(), vgacninit(), vgacnputchar();
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int vgacngetchar(), vgacnscan();
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#endif
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#ifdef CONS_SERIAL
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void siocnprobe(), siocninit(), siocnputchar();
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int siocngetchar(), siocnscan();
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#endif
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struct consdev constab[] = {
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#ifdef CONS_BE
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{ "be", becnprobe, becninit, becngetchar, becnputchar, becnscan },
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#endif
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#ifdef CONS_VGA
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{ "vga", vgacnprobe, vgacninit, vgacngetchar, vgacnputchar, vgacnscan },
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#endif
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#ifdef CONS_SERIAL
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{ "com", siocnprobe, siocninit, siocngetchar, siocnputchar, siocnscan },
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#endif
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{ 0 }
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};
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struct consdev *cn_tab;
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int noconsole;
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char *
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cninit()
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{
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register struct consdev *cp;
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cn_tab = NULL;
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noconsole = 1;
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for (cp = constab; cp->cn_probe; cp++) {
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(*cp->cn_probe)(cp);
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if (cp->cn_pri > CN_DEAD &&
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(cn_tab == NULL || cp->cn_pri > cn_tab->cn_pri))
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cn_tab = cp;
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}
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if (cn_tab) {
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(*cn_tab->cn_init)(cn_tab);
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noconsole = 0;
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return cn_tab->cn_name;
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}
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return NULL;
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}
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cngetc()
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{
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if (cn_tab)
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return ((*cn_tab->cn_getc)(cn_tab->cn_dev));
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return (0);
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}
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cnputc(c)
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int c;
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{
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if (cn_tab)
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(*cn_tab->cn_putc)(cn_tab->cn_dev, c);
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}
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cnscan()
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{
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if (cn_tab)
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return ((*cn_tab->cn_scan)(cn_tab->cn_dev));
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return (0);
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}
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#ifdef CONS_BE
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/*
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* BeBox default console
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*/
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void
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becnprobe(cp)
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struct consdev *cp;
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{
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cp->cn_pri = CN_INTERNAL;
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}
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void
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becninit(cp)
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struct consdev *cp;
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{
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unsigned char *display_memory = (unsigned char *)BEBOX_BUS_SPACE_MEM;
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video_init(display_memory);
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kbdreset();
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}
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becngetchar(cp)
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struct consdev *cp;
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{
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return (kbd_getc());
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}
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void
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becnputchar(cp, c)
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struct consdev *cp;
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register int c;
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{
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video_putc(c);
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}
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becnscan(cp)
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struct consdev *cp;
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{
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return (kbd(1));
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}
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#endif /* CONS_VGA */
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#ifdef CONS_VGA
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/*
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* VGA console
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*/
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void
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vgacnprobe(cp)
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struct consdev *cp;
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{
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cp->cn_pri = CN_NORMAL;
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}
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void
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vgacninit(cp)
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struct consdev *cp;
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{
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unsigned char *display_memory = (unsigned char *)BEBOX_BUS_SPACE_MEM;
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vga_reset(display_memory);
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vga_init(display_memory);
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kbdreset();
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}
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vgacngetchar(cp)
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struct consdev *cp;
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{
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return (kbd_getc());
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}
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void
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vgacnputchar(cp, c)
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struct consdev *cp;
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register int c;
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{
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vga_putc(c);
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}
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vgacnscan(cp)
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struct consdev *cp;
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{
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return (kbd(1));
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}
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#endif /* CONS_VGA */
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#ifdef CONS_SERIAL
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/*
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* serial console
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*/
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void
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siocnprobe(cp)
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struct consdev *cp;
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{
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cp->cn_pri = CN_REMOTE;
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}
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#include "ns16550.h"
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struct NS16550 *sio;
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void
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siocninit(cp)
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struct consdev *cp;
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{
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sio = (struct NS16550 *)NS16550_init();
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}
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siocngetchar(cp)
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struct consdev *cp;
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{
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return (NS16550_getc(sio));
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}
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void
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siocnputchar(cp, c)
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struct consdev *cp;
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register int c;
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{
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if (c == '\n')
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NS16550_putc(sio, '\r');
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NS16550_putc(sio, c);
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}
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siocnscan(cp)
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struct consdev *cp;
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{
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return (NS16550_scankbd(sio));
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}
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#endif /* CONS_SERIAL */
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